Kartboy 12mm Black Exhaust Hanger Subaru WRX / STI 2008-2021 | KB-011-12mm Outback_2010-2014 we found that the increased

we found that the increased thermal mass of using thicker aluminum tubing (1/8” wall thickness) kept the intake from being vulnerable to rapid temperature change

Creates more power

you'll no longer need the factory ones

LCD odometer with trip

Includes Magnetic Drain Plug to capture any metallic debris/fragments in your cooling system

Kartboy 12mm Black Exhaust Hanger Subaru WRX / STI 2008-2021 | KB-011-12mm Outback_2010-2014 we found that the increasedPart #: KB 011 12mm This item qualifies for our free upgrade from ground shipping to 2 business day shipping within the 48 states! All you have to do? Select ground and check out :) If you had just upgraded your exhaust system, or are just tired of your factory exhaust systems swaying from side to side, then the Kartboy 12mm exhaust hangers will completely eliminate this problem. The Kartboy 15mm exhaust hangers are made out of robust polyurethane